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https://issues.apache.org/jira/browse/LANG-916?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Christian P. MOMON updated LANG-916:
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Affects Version/s: (was: 3.3)
> CLONE - DateFormatUtils.format does not correctly change Calendar TimeZone in
> certain situations
> ------------------------------------------------------------------------------------------------
>
> Key: LANG-916
> URL: https://issues.apache.org/jira/browse/LANG-916
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.time.*
> Affects Versions: 3.1
> Environment: Sun JDK6, RHEL 5.3
> Reporter: Christian P. MOMON
> Fix For: 2.5
>
>
> If a Calendar object is constructed in certain ways a call to
> Calendar.setTimeZone does not correctly change the Calendars fields. Calling
> Calenar.getTime() seems to fix this problem. While this is probably a bug in
> the JDK, it would be nice if DateFormatUtils was smart enough to
> detect/resolve this problem.
> For example, the following unit test fails:
> {noformat}
> public void testFormat_CalendarIsoMsZulu() {
> final String dateTime = "2009-10-16T16:42:16.000Z";
> // more commonly constructed with: cal = new GregorianCalendar(2009, 9,
> 16, 8, 42, 16)
> // for the unit test to work in any time zone, constructing with GMT-8
> rather than default locale time zone
> GregorianCalendar cal = new
> GregorianCalendar(TimeZone.getTimeZone("GMT-8"));
> cal.clear();
> cal.set(2009, 9, 16, 8, 42, 16);
> FastDateFormat format =
> FastDateFormat.getInstance("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'",
> TimeZone.getTimeZone("GMT"));
> assertEquals("dateTime", dateTime, format.format(cal));
> }
> {noformat}
> However, this unit test passes:
> {noformat}
> public void testFormat_CalendarIsoMsZulu() {
> final String dateTime = "2009-10-16T16:42:16.000Z";
> GregorianCalendar cal = new
> GregorianCalendar(TimeZone.getTimeZone("GMT-8"));
> cal.clear();
> cal.set(2009, 9, 16, 8, 42, 16);
> cal.getTime();
> FastDateFormat format =
> FastDateFormat.getInstance("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'",
> TimeZone.getTimeZone("GMT"));
> assertEquals("dateTime", dateTime, format.format(cal));
> }
> {noformat}
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